CEMPRA INC

CUSIP: 15130J109 Class: COM

Palo Alto Investors LP's Holding History (CIK: 0001306923)

Note: Option positions (PUT/CALL) are excluded.

Q3 2017
Shares 340,320 Value ($000) $1,106 Avg Close — Range —
Q2 2017
Shares 340,320 Value ($000) $1,565 Avg Close — Range —
Q1 2017
Shares 340,320 Value ($000) $1,276 Avg Close — Range —
Q4 2016
Shares 340,320 Value ($000) $953 Avg Close — Range —
Q3 2016
Shares 2,844,483 Value ($000) $68,836 Avg Close — Range —
Q2 2016
Shares 2,787,542 Value ($000) $45,967 Avg Close — Range —
Q1 2016
Shares 1,215,833 Value ($000) $21,301 Avg Close — Range —
Q4 2015
Shares 1,175,733 Value ($000) $36,601 Avg Close — Range —